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Parallel rule in plastic with aluminum arms lying on a cutting mat. Parallel rulers are a drafting instrument used by navigators to draw parallel lines on charts. The tool consists of two straight edges joined by two arms which allow them to move closer or further away while always remaining parallel to each other.
Today scale rulers are made of plastic, formerly they were made of hardwood. A pocket-sized version is also available, with scales printed on flexible plastic strips. View of a drafting table: the old way of producing architectural and engineering drawings. On the top of the board is a parallel ruler.
The fixed piece forms an ordinary parallel ruler, with the sliding piece extended out to form a ruler at an angle. The link to this ruler can also slide, allowing the angle of the ruler to shift so that it always intersects the vanishing point. To use Nicholson's centrolinead, two lines converging at the vanishing point must already be drawn.
A drafting machine is a tool used in technical drawing, consisting of a pair of scales mounted to form a right angle on an articulated protractor head that allows an angular rotation. [ 1 ] [ 2 ] The protractor head (two scales and protractor mechanism) is able to move freely across the surface of the drawing board , sliding on two guides ...
The basic drafting procedure is to place a piece of paper (or other material) on a smooth surface with right-angle corners and straight sides—typically a drawing board. A sliding straightedge known as a T-square is then placed on one of the sides, allowing it to be slid across the side of the table, and over the surface of the paper.
If your already limited counter space isn't an option, we found a useful folding table on sale at Walmart for under $35 to the rescue. Mainstays. Mainstays 4 Foot Fold-in-Half Adjustable Folding ...